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US2494903A
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Electrical heating element for ovens
Assignee: TAPPAN STOVE Co
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Filing: 1948-02-27
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Granted: 1950-01-17
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Expires: 1968-02-27
Abstract
No abstract record available.
Inventors
- 👤 Robert G Sheidler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:11
CPC Classifications
F; F24; F24C; F24C7/00; F24C7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1001637A
Cited
US1897879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |